Mercurialcrosstool-ng / file revision
summary | shortlog | changelog | graph | tags | branches | files | changeset | file | latest | revisions | annotate | diff | raw | help
config/binutils.in
author "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
Fri Jan 27 13:31:16 2012 +0100 (2012-01-27)
changeset 2854 a70abdbfa342
parent 1897 0a3b9af21490
child 3117 2b64e1b502cd
permissions -rw-r--r--
complibs/cloog: fix linking with libm

In Ubuntu 11.04 and 11.10, the default options for ld have changed.
--no-copy-dt-needed-entries and --as-needed are now enabled by default, which
causes errors like:

[EXTRA] Checking CLooG/ppl
[DEBUG] ==> Executing: 'make' '-j3' '-s' 'check'
[ALL ] Making check in .
[ALL ] config.status: creating include/cloog/cloog-config.h
[ALL ] config.status: include/cloog/cloog-config.h is unchanged
[ALL ] libtool: link: i686-build_pc-linux-gnu-gcc -Wall -fomit-frame-pointer
-pipe -o cloog cloog.o -L/<snip>/build/static/lib ./.libs/libcloog.a -lm
/<snip>/build/static/lib/libppl_c.a /<snip>/build/static/lib/libpwl.a
/<snip>/build/static/lib/libppl.a /<snip>/build/static/lib/libgmpxx.a
/<snip>/build/static/lib/libgmp.a -lstdc++
[ALL ] /usr/bin/ld: /<snip>/build/static/lib/libppl.a(MIP_Problem.o):
undefined reference to symbol 'sqrt@@GLIBC_2.0'
[ALL ] /usr/bin/ld: note: 'sqrt@@GLIBC_2.0' is defined in DSO
/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so so try adding
it to the linker command line
[ALL ] /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so:
could not read symbols: Invalid operation
[ALL ] collect2: ld returned 1 exit status
[ERROR] make[2]: *** [cloog] Error 1
[ERROR] make[1]: *** [check-recursive] Error 1

See:
https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition

This patch fixes these errors by placing '-lm' at the right place on the command
line as libppl requires libm when linking cloog.

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com> 
     1 # Binary utilities menu

     2 

     3 menu "Binary utilities"

     4 

     5 choice

     6     bool

     7     prompt "Binary format:"

     8 

     9 if ARCH_USE_MMU || BARE_METAL

    10 

    11 config ARCH_BINFMT_ELF

    12     bool

    13     prompt "ELF"

    14     help

    15       This will make your system build ELF executables,

    16       suitable for architectures with an MMU.

    17 

    18 endif # ARCH_USE_MMU

    19 

    20 if ! ARCH_USE_MMU

    21 

    22 config ARCH_BINFMT_FLAT

    23     bool

    24     prompt "Flat"

    25     help

    26       This will build flat binaries, suitable for

    27       MMU-less architectures.

    28 

    29 config ARCH_BINFMT_FDPIC

    30     bool

    31     prompt "FD_PIC ELF"

    32     help

    33       This will build FD_PIC ELF binaries, suitable for

    34       MMU-less architectures that still require to use

    35       shared libraries (FIXME).

    36 

    37 endif # ! ARCH_USE_MMU

    38 

    39 endchoice

    40 

    41 source "config/binutils/binutils.in"

    42 source "config/binutils/elf2flt.in"

    43 source "config/binutils/sstrip.in"

    44 

    45 endmenu
crosstool-ng